“Alpha Centauri Up Close!” –NASA Looks at Using the Sun as a Giant Gravity Lens to Study Alien Planets

    NASA says it could study distant exoplanets by using the sun as a giant gravity lens revealing (if it was Earth) islands, rivers, parks, Great Walls, freeways, cities, and so on. Imagine an alien spacecraft sitting at the gravitational focus of a distant star is revealing these details to a spellbound population. The … Continue reading “Alpha Centauri Up Close!” –NASA Looks at Using the Sun as a Giant Gravity Lens to Study Alien Planets